barry0777: the flywheel has marks on the back, 36 targets to be exact, but ONE is missing, when the missing target is founf it tells the ECU the engine is at 90 degrees BTDC, if you dont want to drill your block you can simply fit a 36-1 trigger wheel on the crankshaft pulley and put the sensor there. EFI runs coil packs standard yes. Probably best to get a set up done as there is a CO pot to adjust mixture, aswell as the adjustable fuel pressure regulator.

smitsturbo: IAT = Inlet Air Tempertaure Sensor.

That RSBible guide isnt the best, they got it wrong first time then its ammended and its all vary hard to understand.